VARIABLES

VARIABLES

1. Primitive Data Types

   • int
     • width of 32 Range (2^32) -min 2.147.483.648 - max 2.147.483.647
   • byte
     • 8-bit range (2^8) -min -128 -max 127
   • short
     • width of 16 Range (2^16) -min -32.768 -max 32.767
   • long
     • width of 64 Range (2^64) Use L(uppercase) after declare a long variable exemple long = 43L;
   • float
     • width of 32 Range (2^32) plus 7 digits of precision
   • double
     • width of 64 Range (2^64) plus 16 digits of precision
   • char
     • width 16 only, one character, from ASCII table, included especial characters ($, &...). Is possible to use an unicode code ('\u00A9' = ©)
       • https://unicode-table.com/en/
   • boolean
     • only 2 values: true or false